The club posted a picture of Eyjafjallajokull, one of Iceland’s most dramatic volcanoes, with a message: “Welcome to the island of fire and ice.”

Only around 1000 fans are expected in the Samsung Stadium tonight but Sigmundsson and skipper Michael Praest are confident they can turn up the heat on the Scottish champs.

Sigmundsson said: “I hope we can live up to the tweet and have a great night.

“It will hopefully be very hot for Celtic’s players, a very difficult game. I hope that we play our best match ever.

Celtic train in Iceland at Stjarnan's tiny stadium (Image: SNS Group)

“Celtic’s defence plays very high so on the counter attack they can be vulnerable and there are possibilities for us to score. But they are not a weak team.”

It’s advantage Celtic in the tie thanks to goals from Dedryck Boyata and Stefan Johansen but Stjarnan captain Praest believes the backing of a fanatical home support can help his side turn things around.

The defender said: “Our supporters can help make it hot for Celtic.

“You will be surprised when you see our fans. There are only 1000 of them but they are the best in Iceland.

“We need the whole town to get behind us and make it hot for the Celtic players. We need to be well organised, keep a clean sheet for as long as possible and try to take our chances.”

Stjarnan went through the league season last time out undefeated en route to their first championship in history but have yet to win at home this season and are languishing mid-table.